I have one on my bow, it works nicely. Whether it added any speed, or changed the draw cycle, I have not noticed. It is smooth, and works as advertised. I didn't have a good reason for changing to it, my old slide was just barely beginning to show any wear, and this is the 3rd set of strings on this bow. All you need in this life is ignorance and confidence; then success is sure - Mark Twain
I put one on my assassin shortly after I purchased it as the stock cable slide was just going to lead to me buying lots and lots and lots of cables. Wasn't really concerned about speed, etc. but it took all of about 10 seconds to install and stopped the nasty cable wear I was seeing. I have seen folks in other forums state that on some bows the cables will make contact at one point or another in the draw but I've never had that particular issue.
